hi Tom
restiricted individual port by mac address
you make very easily this command
example
(config)#port-security a1-a24 learn-mode static address-limit 1 action send-disable
a1-a24 (interfaces )
learn mode static (dynamic learn mac address and switch keep mac address)
address-limit (how match mac address permision on port max.32 mac address )
action send-disable (to want different mac connection port ,is port turn disable state